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aev [14]
2 years ago
10

Jillian is using integer tiles to add 7 + (negative 2). She uses the steps below.Step 17 positive tiles.Step 27 positive tiles a

nd 2 negative tiles.Step 37 positive tiles and 2 negative tiles. 2 positive and 2 negative tiles are circled.Step 47 + (negative 2) = 2Jillian has made an error. In which step does it occur?Step 1Step 2Step 3Step 4
Mathematics
1 answer:
NemiM [27]2 years ago
3 0

Answer:

d

Step-by-step explanation:

uhh harder daddy

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D/5 = 4 please explain I do not get this. Thank you
MAXImum [283]
<span>D/5 = 4
Multiply 5 on both sides
Final Answer: D = 20</span>
8 0
3 years ago
How can you solve a rational equation without graphing?
KiRa [710]

Answer:

To figure out the common denominator for these fractions, I'll first need to factor that quadratic in the denominator on the right-hand side of the rational equation. This will also allow me to find the disallowed values for this equation. Factoring gives me:

x2 – 6x + 8 = (x – 4)(x – 2)

The factors of the quadratic on the right-hand side "just so happen" to be duplicates of the other denominators. This often happens in these exercises. (So often, in fact, that if you get completely different factors, you should probably go back and check your work.)

Step-by-step explanation:

4 0
3 years ago
Jillian's puppy weighed 16 pounds at the age of 2 months. It weighed 60 pounds at the age of 8 months. What is the percent chang
mel-nik [20]

Answer:the percent change in the puppy's weight= 275%

Step-by-step explanation:

Jillian's puppy Weight  at 2 months  =16 pounds

Jillian's puppy Weight  at 8 months  =60 pounds

percent change in the puppy's weight= change in weight / Old weight  x 100

(60 pounds -16pounds ) / 16  x 100

44/16 x 100  = 275%

6 0
2 years ago
Add the polynomials: (-5 - 7x^2); (5 + 7x^3) *
cestrela7 [59]

Answer:

- 7 {x}^{2}  + 7 {x}^{3}

Step-by-step explanation:

( - 5 - 7 {x}^{2} ) + (5 + 7 {x}^{3} ) \\  =  - 5 - 7 {x}^{2}  + 5 + 7 {x}^{3}  \\  = - 7 {x}^{2}  + 7 {x}^{3}

3 0
3 years ago
On his hike, hector went up 100 feet. If he started at 30 feet below sea level, what elevation did he end his hike?
Akimi4 [234]
He is at 70 feet above sea level. -30+100 is 70.
3 0
3 years ago
Read 2 more answers
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